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Finding the Fourth Proportional to 612,278.01, 917,544.80 and 451,086.29

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Solution

The fourth proportional to 612,278.01, 917,544.80 and 451,086.29 is: 675,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,278.01 : 917,544.80 = 451,086.29 : x
  2. Step 2: Convert to fraction form
    612,278.01/917,544.80 = 451,086.29/x
  3. Step 3: Cross multiply
    612,278.01x = 917,544.80 × 451,086.29
  4. Step 4: Simplify right side
    612,278.01x = 413,891,879,740.79
  5. Step 5: Solve for x
    x = 413,891,879,740.79/612,278.01
  6. Step 6: Final answer
    x = 675,986.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.